问题描述
什么时候应该声明我的变量作为指针vs对象传递的引用?它们在汇编中编译为同一个东西(至少是渐近的运行时),所以我什么时候应该使用它?
void foo obj * param)
void foo(obj& param)
我的规则很简单:使用*当你想显示的值是可选的,因此可以是0.
排除规则:所有_obj_s周围存储在容器中,并且您不想通过使用无处不在的 foo(* value);
而不是 foo(value) ;
那么就要显示该值不能为0在函数begin处插入 assert(value);
>
When should I declare my variables as pointers vs objects passed-by-reference? They compile to the same thing in assembly (at least run-time asymptotically) so when should I use which?
void foo(obj* param)
void foo(obj& param)
My rule is simple: use * when you want to show that value is optional and thus can be 0.
Excluding from the rule: all the _obj_s around are stored in containers and you don't want to make your code look ugly by using everywhere foo(*value);
instead of foo(value);
So then to show that value can't be 0 put assert(value);
at the function begin.
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